Airbag control unit with part number 98221FG020

What does the airbag control unit 98221FG020 do?

As the central SRS control unit, the airbag control unit 98221FG020 evaluates the signals from the crash sensors for Subaru. In a crash it decides within milliseconds which airbags and seatbelt pretensioners to trigger, and it monitors the system continuously. It indicates faults via the airbag warning light.

After an accident, the unit stores crash data and locks itself.

The ongoing self-monitoring is carried out by the unit without any action on your part.

Why does the control unit 98221FG020 fail?

Stored crash data after an accident is the most common cause of a failure in the control unit 98221FG020, even if no airbag has deployed. A standard diagnostic tool cannot erase it. Other possible causes are aged components, cold solder joints, moisture and corrosion on connectors, and voltage spikes.

The crash data remains in the unit until it is deliberately deleted.

Electronic components age, and solder joints can go cold. Moisture and corrosion attack the contacts that connect the control unit to the wiring harness.

Voltage spikes arise, for example, from a weak battery or from a jump start.

How can you tell that the 98221FG020 is defective?

On the control unit 98221FG020 you can recognise a defect by the airbag warning light, when it lights up permanently or intermittently. A fault message in the instrument cluster, a diagnostic tool that cannot establish a connection, or a fault memory that cannot be cleared are also signs. In an emergency, airbags and seatbelt pretensioners may then fail to deploy.

The light is the system's visible message to the driver.

To narrow down the cause, the fault memory can be read with a diagnostic tool.

Which vehicles is the 98221FG020 fitted in?

The control unit 98221FG020 is fitted in these vehicles: Subaru Impreza GH (2007-2014).

This list compiles the models:

• Subaru Impreza GH (2007-2014)

Comparing the part number on the label of the removed unit with this page only confirms that it is the correct unit. Have the fault memory read out beforehand, because only that result shows whether the control unit is defective or whether a connector or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 98221FG000, 98221FG040, 98221FG060, 98221FG070.

How does the repair of the 98221FG020 work?

First have the fault memory read out and enclose the log. Then disconnect the battery and only afterwards remove the control unit 98221FG020. Next, create a repair order online and send the unit in, packed well.

At Airbag24 the unit is checked on the test bench, defective components are repaired, stored crash data is deleted and a function test is carried out.

Processing usually takes 3–4 working days, after which your own unit is returned to you. Our repairs come with 2 years' statutory liability for defects. The repaired control unit comes back with all vehicle data and is ready for use as soon as it is refitted — no coding or programming is required.

How does the control unit 98221FG020 get to Airbag24?

You can send control unit 98221FG020 in as a parcel, or you can book a UPS collection for an extra charge. UPS returns it to you after the repair.

Enclose the printed repair order in the parcel and pack the unit shockproof.